Superset does not currently have the ability to drill down in charts and tables. We have developed a hack for table type values, but it's not sustainable. This epic captures the process of scoping a drill down feature for Superset and identifying if we want to develop it so that users can drill down to view another chart when they click on a row or bar in an existing chart.
Work with the Superset community to figure out how this can be supported
Write a scoping document
Decide if we want to develop this feature
Develop the feature
Document and possibly merge with Superset